The first low-cost spectrophotometer capable of recording an infrared spectrum was the Perkin-Elmer Infracord produced in 1957. This instrument covered the wavelength range from 2.5 μm to 15 μm (wavenumber range 4000 cm−1 to 660 cm−1). The lower wavelength limit was chosen to encompass...
NIR has the shortest wavelength with higher wavenumbers while FIR has the longest wavelength with lower wavenumbers. Typically, when discussing IR spectroscopy MIR is the type of IR light that is used. The IR light in this range is useful because it coincides with an important property of ...
IR spectrumTo design microgratings, which can be used for correlation spectroscopy in the 725–1450 cm1 range, a gradient searching Davidon–Fletcher–Powell (DFP) algorithm was successfully applied to retrieve target spectra of SF6, ethylene, SO2, and NH3. Owing to a unique fit parameter ...
Infrared spectroscopy deals with the recording of the absorption of radiations in the infrared region of the electromagnetic spectrum. The position of a given infrared absorption is expressed in terms of wavelength in micron μ or more commonly in terms of wavenumber % MathType!MTEF!2!1!+- % ...
The camera can detect temperature (moisture) variations and the detection area can be limited inside the Region of Interest (ROI) in the same way as with ordinary web monitoring cameras. The Flex IR Thermal camera acts and is displayed in user interface camera listing exactly as the other ...
The Raman Shift Cell is designed to convert visible or deep-red pulses generated by a dye laser to the near infrared (900 .. 1500 nm) wavelength range. Wavelength conversion is achieved by the Raman effect, i. e. Stokes-shift in a gas cell filled with either nitrogen or hydrogen under ...
Optional 200mm~1000mm telephoto zooming lens and 440000 pixel/ 2 megapixel visible color to B/W CCD, and with the 360°continuously rotation platform, the camera can monitor a region of 2km~10km clearly. With built-in technical grade electronic control system...
Specifications: Diameter: 52cm Beam Angle Options: 30°, 45°, 60°, 90° Wavelength: 850nm Input Voltage: DC12V 1A IR LEDs: 850nm 4pcs IR array LEDs New Upgraded Type: Enhanced IR array light board for CCTV cameras Features: |What Is A Ir Emitter| **Enhanced Night Vision Capabilities...
2-in-1 card - Reflective & Transmissive (see laser from back side) High sensitivity down to uW/cm2 level in dark Large active region up to 85.5 mm x 54 mm Edge-to-edge design for easy alignment Durable and portable ISO standard PVC card Wide wavelength coverage from 800 to 1600 nm ...
IR和Raman光谱的讲座